'use strict';

var Profiler = require('step-profiler');

/**
 * Proxy to encapsulate node-step-profiler module so there is no need to check if there is an instance
 */
function ProfilerProxy (opts) {
    this.profile = !!opts.profile;

    this.profiler = null;
    if (opts.profile) {
        this.profiler = new Profiler({ statsd_client: opts.statsd_client });
    }
}

ProfilerProxy.prototype.done = function (what) {
    if (this.profile) {
        this.profiler.done(what);
    }
};

ProfilerProxy.prototype.end = function () {
    if (this.profile) {
        this.profiler.end();
    }
};

ProfilerProxy.prototype.start = function (what) {
    if (this.profile) {
        this.profiler.start(what);
    }
};

ProfilerProxy.prototype.add = function (what) {
    if (this.profile) {
        this.profiler.add(what || {});
    }
};

ProfilerProxy.prototype.sendStats = function () {
    if (this.profile) {
        this.profiler.sendStats();
    }
};

ProfilerProxy.prototype.toString = function () {
    return this.profile ? this.profiler.toString() : '';
};

ProfilerProxy.prototype.toJSONString = function () {
    return this.profile ? this.profiler.toJSONString() : '{}';
};

ProfilerProxy.prototype.toJSON = function () {
    return this.profile ? JSON.parse(this.profiler.toJSONString()) : {};
};

module.exports = ProfilerProxy;
